PT United Tractors Tbk is a subsidiary of PT Astra International Tbk (“Astra”), one of the largest and most established business groups in Indonesia. With its extensive experience in serving diverse industries and sectors, United Tractors has built a strong foundation as a leading company. Since September 19, 1989, United Tractors has been a public company, listing its shares on the Indonesia Stock Exchange, which was formerly known as the Jakarta Stock Exchange and Surabaya Stock Exchange. Currently, Astra owns 59.5% of the Company’s shares, while the remaining shares are held by the public.
United Tractors plays a vital role in the nation’s economy through its five business pillars: Construction Machinery, Mining Contracting, Mining, Construction Industry, and Energy. These pillars reflect the Company’s commitment to providing integrated solutions and contributing to the development of Indonesia’s industrial and infrastructure sectors. With its broad portfolio, United Tractors has positioned itself as a key player in supporting national growth and sustainability.

PT Angkasa Pura Suport (APS) is a subsidiary of PT Angkasa Pura I (Persero) (Now, PT Angkasa Pura Indonesia / InJourney Airports), established in March 2012 to provide comprehensive and integrated property maintenance services, particularly for airport facilities. The company was founded with the vision of supporting the parent company in delivering world-class services to passengers and visitors at airports across Indonesia. APS has since evolved into a key player in the aviation support industry, offering a wide range of services that extend beyond airport operations to include commercial and public properties such as hospitals and office buildings.

PT Pelita Air Service (PAS), established in 1970 in Indonesia, began its journey in the exploration and exploitation of oil and natural gas fields. Over the years, PAS has evolved into a leading provider of aviation and industrial services, offering award-winning solutions that cater to diverse needs. As part of its commitment to excellence, the company has built a reputation for reliability and innovation in transportation, training, maintenance, and other specialized services.
In aviation, PAS has demonstrated exceptional capabilities, logging 37,884 flight hours between 2014–2017. Its extensive network includes five base stations, with a fleet comprising 15 rotary-wing aircraft (helicopters) and nine fixed-wing planes. Notably, PAS plays a crucial role in Papua’s "1 Fuel Price" program, transporting over 150 kiloliters of fuel monthly to support equitable fuel access in remote areas.

PT Elnusa Fabrikasi Konstruksi (EFK) is a subsidiary of PT Elnusa Tbk, which is part of the Pertamina Group. Established in 1982, EFK has become one of the most experienced and comprehensive threading factories in Batam. With a land area of 35,158 m² consisting of office facilities, workshops, and open yards for pipe operations and storage, we are ready to provide the best services in Oil Country Tubular Goods (OCTG), Fabrication, Construction, and Maintenance services.
The company name changed from PT Purna Bina Nusa to PT Elnusa Fabrikasi Konstruksi based on Notarial Deed No. 12 dated December 22, 2010, made before Notary Yulida Desmartiny in Jakarta. This change was based on the company's expansion into the fields of engineering, manufacturing and fabrication, processing, as well as the production and repair of oil equipment, and general trade import-export.
PT Elnusa Fabrikasi Konstruksi envisions becoming a leading oil equipment manufacturing company by consistently delivering the highest quality products and services to both domestic and international oil and gas industries. This ambition reflects a commitment to innovation, reliability, and excellence in every aspect of its operations.

PT Jawa Satu Power is a joint venture entity between PT Pertamina Power Indonesia ("PPI"​), Garuda Power Holdings B.V. and Sojitz Global Investment B.V. Established on December 05, 2016 as a special purpose company in running, controlling and managing the assets of Jawa-1 power plant business activities, which serves as the largest gas-fired power plant with CCGT technology in Southeast Asia.
The company runs its business professionally by upholding an effective and efficient Corporate Governance principles in order to provide continuous added values to shareholders.
PT Jawa Satu power deals with more than 20 companies involved, 3 main consortium members, 2 additional members in FSRU (PT Jawa Satu regas), 3 senior lenders (JBIC, NEXI, ADB) plus 5 commercial banks (Mizuho, MUFG, societe generale, OCBC bank, credit agricole), 3 main EPC contractors, and advisories on the financial, legal, and technical. Companies involved come from Indonesia, Japan, Korea, America, and Europe, which is connecting almost the whole continents of the globe.

PT Adaro Andalan Indonesia Tbk is a dynamic company that plays a significant role in the energy and mining sector in Indonesia. As part of the broader Adaro Group, the company is committed to supporting Indonesia’s energy needs through sustainable practices, innovation, and operational excellence. With a strong foundation in coal mining and energy production, PT Adaro Andalan Indonesia Tbk has expanded its focus to include integrated services, infrastructure development, and renewable energy initiatives, reflecting its vision of becoming a leading energy provider in the region. The company’s operations are designed to balance economic growth with environmental responsibility, ensuring long-term benefits for stakeholders, employees, and the communities in which it operates.

PT Adaro Logistics is a subsidiary within the Adaro Group that plays a pivotal role in supporting the company’s integrated coal supply chain and energy business. Established to ensure efficiency, reliability, and sustainability in the movement of coal and related commodities, Adaro Logistics has grown into a comprehensive logistics provider that manages transportation, handling, and distribution across Indonesia’s vast archipelago. Its operations are designed to connect mines to markets, ensuring that Adaro’s coal and other resources reach domestic and international customers with precision and consistency. The company’s presence in logistics reflects Adaro Group’s commitment to building a fully integrated energy business, where every stage of the supply chain is managed with professionalism and innovation.

PT Angkasa Pura Suport (APS) is a subsidiary of PT Angkasa Pura I (Persero) (Now, PT Angkasa Pura Indonesia / InJourney Airports), established in March 2012 to provide comprehensive and integrated property maintenance services, particularly for airport facilities. The company was founded with the vision of supporting the parent company in delivering world-class services to passengers and visitors at airports across Indonesia. APS has since evolved into a key player in the aviation support industry, offering a wide range of services that extend beyond airport operations to include commercial and public properties such as hospitals and office buildings.